adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/BPRestCallback.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP - SO
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * Copyright (C) 2017 Huawei Technologies Co., Ltd. All rights reserved.
   7  * ================================================================================
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  * ============LICENSE_END=========================================================
  20  */
  21
  22 package org.onap.so.adapters.sdnc.sdncrest;
  23
  24 import javax.xml.bind.DatatypeConverter;
  25
  26 import org.apache.http.HttpResponse;
  27 import org.apache.http.client.HttpClient;
  28 import org.apache.http.client.config.RequestConfig;
  29 import org.apache.http.client.methods.HttpPost;
  30 import org.apache.http.entity.ContentType;
  31 import org.apache.http.entity.StringEntity;
  32 import org.apache.http.impl.client.HttpClientBuilder;
  33 import org.apache.http.util.EntityUtils;
  34 import org.onap.so.adapters.sdnc.impl.Constants;
  35 import org.onap.so.logger.MessageEnum;
  36 import org.onap.so.logger.MsoAlarmLogger;
  37 import org.onap.so.logger.MsoLogger;
  38 import org.springframework.beans.factory.annotation.Autowired;
  39 import org.springframework.stereotype.Component;
  40 import org.onap.so.utils.CryptoUtils;
  41 import org.springframework.core.env.Environment;
  42
  43 /**
  44  * Sends asynchronous messages to the BPMN WorkflowMessage service.
  45  */
  46 @Component
  47 public class BPRestCallback {
  48         private static final MsoLogger LOGGER = MsoLogger.getMsoLogger(MsoLogger.Catalog.RA,BPRestCallback.class);
  49         private static final MsoAlarmLogger ALARMLOGGER = new MsoAlarmLogger();
  50
  51         @Autowired
  52         private Environment env;
  53
  54         /**
  55          * Sends a message to the BPMN workflow message service. The URL path is
  56          * constructed using the specified message type and correlator.
  57          * @param workflowMessageUrl the base BPMN WorkflowMessage URL
  58          * @param messageType the message type
  59          * @param correlator the message correlator
  60          * @param message the JSON content
  61          * @return true if the message was consumed successfully by the endpoint
  62          */
  63         public boolean send(String workflowMessageUrl, String messageType, String correlator, String message) {
  64                 LOGGER.debug(getClass().getSimpleName() + ".send("
  65                         + "workflowMessageUrl=" + workflowMessageUrl
  66                         + " messageType=" + messageType
  67                         + " correlator=" + correlator
  68                         + " message=" + message
  69                         + ")");
  70
  71                 while (workflowMessageUrl.endsWith("/")) {
  72                         workflowMessageUrl = workflowMessageUrl.substring(0, workflowMessageUrl.length()-1);
  73                 }
  74
  75                 String endpoint = workflowMessageUrl + "/" + SDNCAdapterUtils.encodeURLPathSegment(messageType)
  76                         + "/" + SDNCAdapterUtils.encodeURLPathSegment(correlator);
  77
  78                 return send(endpoint, message);
  79         }
  80
  81         /**
  82          * Sends a message to the BPMN workflow message service. The specified URL
  83          * must have the message type and correlator already embedded in it.
  84          * @param url the endpoint URL
  85          * @param message the JSON content
  86          * @return true if the message was consumed successfully by the endpoint
  87          */
  88         public boolean send(String url, String message) {
  89                 LOGGER.debug(getClass().getSimpleName() + ".send("
  90                         + "url=" + url
  91                         + " message=" + message
  92                         + ")");
  93
  94                 LOGGER.info(MessageEnum.RA_CALLBACK_BPEL, message == null ? "[no content]" : message, "Camunda", "");
  95
  96                 HttpPost method = null;
  97                 HttpResponse httpResponse = null;
  98
  99                 try {
 100                         int timeout = 60 * 1000;
 101
 102                         RequestConfig requestConfig = RequestConfig.custom()
 103                                 .setSocketTimeout(timeout)
 104                                 .setConnectTimeout(timeout)
 105                                 .setConnectionRequestTimeout(timeout)
 106                                 .build();
 107
 108                         HttpClient client = HttpClientBuilder.create().build();
 109                         method = new HttpPost(url);
 110                         method.setConfig(requestConfig);
 111
 112                         if (message != null) {
 113                                 method.setEntity(new StringEntity(message, ContentType.APPLICATION_JSON));
 114                         }
 115
 116                         boolean error = false;
 117
 118                         try {
 119                                 String userCredentials = CryptoUtils.decryptProperty(env.getProperty(Constants.BPEL_AUTH_PROP),
 120                                         Constants.DEFAULT_BPEL_AUTH, Constants.ENCRYPTION_KEY);
 121                                 String authorization = "Basic " + DatatypeConverter.printBase64Binary(userCredentials.getBytes());
 122                                 method.setHeader("Authorization", authorization);
 123                         } catch (Exception e) {
 124                                 LOGGER.error(MessageEnum.RA_SET_CALLBACK_AUTH_EXC, "Camunda", "", MsoLogger.ErrorCode.BusinessProcesssError,
 125                                         "Unable to set authorization in callback request", e);
 126                                 ALARMLOGGER.sendAlarm("MsoInternalError", MsoAlarmLogger.CRITICAL,
 127                                         "Unable to set authorization in callback request: " + e.getMessage());
 128                                 error = true;
 129                         }
 130
 131                         if (!error) {
 132                                 httpResponse = client.execute(method);
 133
 134                                 @SuppressWarnings("unused")
 135                                 String responseContent = null;
 136
 137                                 if (httpResponse.getEntity() != null) {
 138                                         responseContent = EntityUtils.toString(httpResponse.getEntity(), "UTF-8");
 139                                 }
 140
 141                                 if (httpResponse.getStatusLine().getStatusCode() >= 300) {
 142                                         String msg = "Received error response to callback request: " + httpResponse.getStatusLine();
 143                                         LOGGER.error(MessageEnum.RA_CALLBACK_BPEL_EXC, "Camunda", "", MsoLogger.ErrorCode.BusinessProcesssError, msg);
 144                                         ALARMLOGGER.sendAlarm("MsoInternalError", MsoAlarmLogger.CRITICAL, msg);
 145                                 }
 146                         }
 147                         return true;
 148                 } catch (Exception e) {
 149                         LOGGER.error(MessageEnum.RA_CALLBACK_BPEL_EXC, "Camunda", "", MsoLogger.ErrorCode.BusinessProcesssError,
 150                                 "Error sending callback request", e);
 151                         ALARMLOGGER.sendAlarm("MsoInternalError", MsoAlarmLogger.CRITICAL,
 152                                 "Error sending callback request: " + e.getMessage());
 153                         return false;
 154                 } finally {
 155                         if (httpResponse != null) {
 156                                 try {
 157                                         EntityUtils.consume(httpResponse.getEntity());
 158                                         httpResponse = null;
 159                                 } catch (Exception e) {
 160                                         LOGGER.debug("Exception:", e);
 161                                 }
 162                         }
 163
 164                         if (method != null) {
 165                                 try {
 166                                         method.reset();
 167                                 } catch (Exception e) {
 168                                         LOGGER.debug("Exception:", e);
 169                                 }
 170                         }
 171                         LOGGER.info(MessageEnum.RA_CALLBACK_BPEL_COMPLETE, "Camunda", "","");
 172                 }
 173         }
 174 }